The period that an element is in tells the number of electrons shells normally possessed by an atom.
An electron is a negatively charged subatomic particle that can be either sure to an atom or loose. An electron that is sure to an atom is one of the three number one types of debris in the atom the opposite are protons and neutrons.
Electrons are the smallest of the debris that make up an atom, and they bring a bad price. The variety of protons and electrons is equal in a impartial atom. The hydrogen atom, as an instance, has just one electron and one proton.
Atoms are constructed of two sorts of elementary particles: electrons and quarks. Electrons occupy a space that surrounds an atom's nucleus. each electron has an electrical charge of -1. Quarks make up protons and neutrons, which, in turn, make up an atom's nucleus.
Learn more about electrons here:-https://brainly.com/question/860094
#SPJ4
